25261083541 has 2 divisors, whose sum is σ = 25261083542. Its totient is φ = 25261083540.

The previous prime is 25261083493. The next prime is 25261083559. The reversal of 25261083541 is 14538016252.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 14929174225 + 10331909316 = 122185^2 + 101646^2 .

It is a cyclic number.

It is not a de Polignac number, because 25261083541 - 2⁷ = 25261083413 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 25261083541.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (25261083571) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 12630541770 + 12630541771.

It is an arithmetic number, because the mean of its divisors is an integer number (12630541771).

Almost surely, 2^25261083541 is an apocalyptic number.

It is an amenable number.

25261083541 is a deficient number, since it is larger than the sum of its proper divisors (1).

25261083541 is an equidigital number, since it uses as much as digits as its factorization.

25261083541 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 57600, while the sum is 37.

Adding to 25261083541 its reverse (14538016252), we get a palindrome (39799099793).

The spelling of 25261083541 in words is "twenty-five billion, two hundred sixty-one million, eighty-three thousand, five hundred forty-one".